Pith Number

pith:IN7CLORO

pith:2009:IN7CLOROSWUNUBYVIV2GOX5I4T

not attested not anchored not stored refs pending

p-local finite group cohomology

K\'ari Ragnarsson, Ran Levi

arxiv:0910.5639 v2 · 2009-10-29 · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IN7CLOROSWUNUBYVIV2GOX5I4T}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:27:28.281828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

437e25ba2e95a8da07154574675fa8e4cc2bbc98fa685efbe868f655b6a1ddb6

Aliases

arxiv: 0910.5639 · arxiv_version: 0910.5639v2 · doi: 10.48550/arxiv.0910.5639 · pith_short_12: IN7CLOROSWUN · pith_short_16: IN7CLOROSWUNUBYV · pith_short_8: IN7CLORO

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IN7CLOROSWUNUBYVIV2GOX5I4T \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 437e25ba2e95a8da07154574675fa8e4cc2bbc98fa685efbe868f655b6a1ddb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c069f9cc5f435bbb81d6a9602440fa0f5f6d045b4c3f0ad69347f63e61e05eec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2009-10-29T14:01:28Z",
    "title_canon_sha256": "b757caeeb7df750c65e8704aa03d80c441072cf2eecac032a115012f80bf572b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5639",
    "kind": "arxiv",
    "version": 2
  }
}